Doom 1&2 has been ported to ARM (and xscale of cource) devices for over 2 years now people. I'm supprized you guys haven't seen it yet.
Oh and if you really want to show off your pocket pc's potential install Pocket Quake. It is by far the most graphically intense game to date that I know of.
http://www.amazon.com/exec/obidos/tg...e&s=videogames
And don't read the reviews on that site. They were using devices that could barely even run it. Pocket pc's have gotten a good bit faster and more usable these days.